Android

While the Wear 2.0 and Android N previews were interesting, the eye-catching news was around Instant Apps, where you can run an Android app without needing to install. The expansion of Firebase to an all-encompassing area for every aspect of app management was a highlight too.

Maybe Google's Awareness API is what you're looking for to build an app with a difference, making them context aware. Once you put your trust in certain apps, they can do "stuff" based on what various sensors on your phone pick up.